noun
thoughtography; spirit photography; psychic photography
Paranormal phenomenon where a person's thoughts or mental images are supposedly projected onto photographic film or digital media. The reading ねんず is less common.
彼は念写の実験に参加した。
He participated in a thoughtography experiment.
念写は超心理学の分野で研究されることがある。
Thoughtography is sometimes studied in the field of parapsychology.
From 念 (thought, mental) and 写 (copy, photograph). The term was coined in the context of parapsychology research.